The invention discloses a ball-milling mixer for producing a drilling-milling-integration hard alloy. The ball-milling mixer comprises a barrel, wherein two grinding rollers are rotationally connectedto the upper portion of the inner wall of the barrel through two rotating shafts correspondingly, a first annular groove is formed in the inner wall of the barrel, a first circular ring is slidably connected to the inner wall of the first annular groove, a transverse plate is fixedly connected to the inner wall of the barrel, the upper end of the transverse plate is rotationally connected with acylinder through a connecting rod, and the upper end and the lower end of the cylinder are conical. According to the mixer, by arranging the grinding rollers, first grinding teeth and second grindingteeth, materials can be fully and finely ground, a cam collides with a transverse rod in a clearance mode through rotation of a transverse column, the materials ground again can be filtered, large particles in the ground materials are removed, through rotation of a spiral blade of an auger, the large particles filtered by a filter screen can be conveyed, manual conveying of the large particles isnot needed, and the working intensity is reduced.